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| Number | Title | Issue Date |
| 4696045 | Ear microphone An ear microphone includes a bimorph piezoelectric transducer mounted on a PC board having an amplifier therein and surrounded by a helically wound spring. The piezoelectric transducer and spring are potted in a semi-soft potting compound which is formed ... | 09/22/1987 |
| 4685448 | Vocal tactile feedback method and associated apparatus A vocal tactile feedback apparatus and method for use in the treatment of stuttering and other speech or hearing abnormalities is disclosed. A microphone and amplifier are utilized to produce and amplify an electronic signal responsive to vocal utterances... | 08/11/1987 |
| 4654883 | Radio transmitter and receiver device having a headset with speaker and microphone A radio transmitter and receiver device in which a head band has a transmitting microphone at one end and a receiving speaker at the other end. This microphone comprises a bone transmission type microphone for detecting aural oscillation of an external au... | 03/31/1987 |
| 4652702 | Ear microphone utilizing vocal bone vibration and method of manufacture thereof This invention, directed to a displacement type bone vibration ear microphone possessing an electroacoustic transducer element planted in one of the end faces of a support member and a damper member formed so as to enclose therewith the electroacoustic tr... | 03/24/1987 |
| 4607383 | Throat microphone A throat microphone has an outer resonant diaphragm which is adapted to be secured against the throat of a wearer and which cooperates with a housing to form an outer chamber. An electret microphone element disposed inside the outer chamber includes an el... | 08/19/1986 |
| 4596903 | Pickup device for picking up vibration transmitted through bones A pickup device for picking up vibration transmitted through bones or solid members in human, in which a piezoelectric element is mounted like a cantilever within a substantially rigid liquid-tight case filled with a viscous liquid in such a way that the ... | 06/24/1986 |
| 4591668 | Vibration-detecting type microphone A vibration-detecting-type microphone for detecting voice vibrations by being contacted to the buccal region or the mastoid of the temporal region of a user. This microphone has a belt-like diaphragm whose both ends are fixed to a casing with one end open... | 05/27/1986 |
| 4588867 | Ear microphone An ear microphone comprising a pickup piece having a configuration which facilitates insertion thereof into a human external auditory canal, a vibration/electrical signal converter element installed within the pickup piece, a resilient member attached to ... | 05/13/1986 |
| 4520238 | Pickup device for picking up vibration transmitted through bones A pickup device for picking up sound generated by the vocal chords and transmitted through bones from the nasal bone. A microphone (11) is mounted on or embedded into an eyeglass-like assembly (13, 15). When the microphone is mounted as a nosepiece, it is... | 05/28/1985 |
| 4516428 | Acceleration vibration detector An ear microphone for an external auditory canal insertion type two-way communication earpiece. Within the casing of the earpiece a fixed electrode and a vibrating electrode are positioned in capacitive relation with each other, the vibrating electrode fo... | 05/14/1985 |
| 4507816 | Waterbed with sound wave system A standard waterbed is shown having added thereto a sound wave system having four loudspeaker housings positioned within the floor pedestal of the bed beneath the supporting deck for the water-filled bladder mattress. Each of these loudspeaker housings is... | 04/02/1985 |
| 4506379 | Method and system for discriminating human voice signal Audible entertainment signals are also filtered to detect speech presence whereby only frequencies in the band 0-150 Hz, are applied to vibrate a listener's chair for special effects.... | 03/19/1985 |
| 4337377 | Biologic apparatus The present invention relates to a biologic apparatus that permits easy and quick telephonic transmission of biologic signals--such as an electrocardiogram, blood pressure, cranial waveforms, and the like--from any location having a telephone handset. The... | 06/29/1982 |
| 4334315 | Wireless transmitting and receiving systems including ear microphones A wireless transmitting and receiving system includes an ear microphone of the vibration pick-up type for picking up bone-conducted voice signals through an external auditory ear canal wall of a wearer. A portable case is disposed adjacent the wearer's ea... | 06/08/1982 |
| 4323999 | Automatic transmission or recording or transmission and reception control system A system to automatically control the changeover of recording and recording stop, or transmission and transmission stop, and being employed in the recording or transmitting device provided with a vibration pick-up type microphone for picking up bone-condu... | 04/06/1982 |
| 4322585 | Personal electronic listening system with an air and bone transducer mounted on the clothing collar A personal electronic listening system is disclosed wherein miniature moisture-protected speakers are electrically connected for operation to a personal electronic unit such as a stereo attached to the wearer by a belt, for example. The speaker units have... | 03/30/1982 |
| 4311872 | Portable voice communication system A throat microphone consists of a dynamic pressure transducer sealed within an airtight tympanic enclosure to be held by an elastic band on the user's throat near the voice box. The electrical signals generated by the transducer are applied as an input si... | 01/19/1982 |
| 4309575 | Apparatus for intercranial transmission of audio signals An apparatus for intercranial transmission of a plurality of audio signals in which a pair of transducers are independently mounted on a headband for transmitting audio signals from a source to the cranium. The apparatus is comprised of two parallel wires... | 01/05/1982 |
| 4071110 | Underwater voice communicator The communicator comprises a casing with extending bits for clenching between a diver's teeth in a manner such that the diver can speak into an air chamber within the casing. An acoustical diaphragm within the casing absorbs acoustical energy in the air c... | 01/31/1978 |
| 4070553 | Personal audio listening system A personal audio listening system to be worn by an individual listener is disclosed and includes a pair of speakers mounted within a flexible supporting body which surrounds the back and side portions of the listener's neck. The supporting body may includ... | 01/24/1978 |
| 4039999 | Communication system Amplitude modulation systems for underwater communication have a number of disadvantages. For example, with a number of divers attempting to communicate simultaneously, intolerable cross-talk occurs. Variable tuning is necessary to overcome this problem. ... | 08/02/1977 |
| 4025734 | Ambient noise shielded ear transceiver An earpiece, usually part of a headset, has a funnel-shaped protrusion which extends into the auditory canal of the user. Sound passes through it, and in addition it has electrical transducer elements which pick up speech vibrations.... | 05/24/1977 |
| 4025732 | Method and device for presenting information to deaf persons In a device for presenting information to deaf persons an electroacoustic signal from a microphone is supplied to a high-pass and to a low-pass channel via an amplifier. The relation between the envelope potentials of the high-passed and the low-passed si... | 05/24/1977 |
| 4017797 | Headset for receiving and transmitting signals The present invention provides a two-way sound transducer system, including amplification circuitry within an ear-muff type attenuator, to enable the user to listen to principally voice communications (although other forms of sound can be transmitted) fro... | 04/12/1977 |
| 4012604 | Microphone for the transmission of body sounds A microphone for the transmission and conversion of low frequency body sound signals, characteristic of blood pressure conditions, the microphone featuring a Seignette salt crystal wafer as a transducing element, a foamed body as a transmitting element, a... | 03/15/1977 |
| 4006318 | Inertial microphone system An inertial-reaction microphone transducer mounting supported on the wearer's head away from the mouth for transmitting speech to the exclusion of ambient. A compliant, radial array of elastomer supporting material presses the transducer gently to the hea... | 02/01/1977 |
| 3980842 | Telephone listening comfort adaptor (TLCA) An attachment to or an integral part of a telephone handset, such attachment or integral part consisting of an appendage connected with the receiver of said handset and designed to function primarily as a pivot, sound conducting device, pivot and rest aga... | 09/14/1976 |
